General Motors has issued a recall for all Hummer H3s vehicles produced since the 2006 model year to fix a portion of the hood that can detach during driving, the Associated Press has reported. Hummer spokesman Nick Richards said a device on the hood called a hood louver can come loose and possibly detach while driving. The voluntary recall affects 164,190 Hummer H3s and H3Ts in the US and 198,404 worldwide.